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Finding the Fourth Proportional to 112,523.28, 155,281.72 and 62,222.28

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Solution

The fourth proportional to 112,523.28, 155,281.72 and 62,222.28 is: 85,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,523.28 : 155,281.72 = 62,222.28 : x
  2. Step 2: Convert to fraction form
    112,523.28/155,281.72 = 62,222.28/x
  3. Step 3: Cross multiply
    112,523.28x = 155,281.72 × 62,222.28
  4. Step 4: Simplify right side
    112,523.28x = 9,661,982,660.72
  5. Step 5: Solve for x
    x = 9,661,982,660.72/112,523.28
  6. Step 6: Final answer
    x = 85,866.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.